JPH0329628B2 - - Google Patents

Info

Publication number
JPH0329628B2
JPH0329628B2 JP55096967A JP9696780A JPH0329628B2 JP H0329628 B2 JPH0329628 B2 JP H0329628B2 JP 55096967 A JP55096967 A JP 55096967A JP 9696780 A JP9696780 A JP 9696780A JP H0329628 B2 JPH0329628 B2 JP H0329628B2
Authority
JP
Japan
Prior art keywords
oil pump
steering
vehicle speed
oil
load current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP55096967A
Other languages
Japanese (ja)
Other versions
JPS5722967A (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9696780A priority Critical patent/JPS5722967A/en
Priority to US06/221,612 priority patent/US4392540A/en
Priority to DE19813100067 priority patent/DE3100067A1/en
Priority to AU65981/81A priority patent/AU547767B2/en
Priority to GB8100382A priority patent/GB2079691B/en
Priority to KR1019810000036A priority patent/KR870001172B1/en
Priority to CA000368226A priority patent/CA1169782A/en
Priority to FR8100326A priority patent/FR2486898B1/en
Priority to IT67020/81A priority patent/IT1172218B/en
Priority to BE0/203457A priority patent/BE887036A/en
Priority to ES498431A priority patent/ES498431A0/en
Priority to NL8100076A priority patent/NL8100076A/en
Priority to US06/284,539 priority patent/US4417640A/en
Publication of JPS5722967A publication Critical patent/JPS5722967A/en
Publication of JPH0329628B2 publication Critical patent/JPH0329628B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/02—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to vehicle speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Description

【発明の詳細な説明】 〔発明の詳細な説明〕 この発明はパワーステアリング装置の改良に関
する。DETAILED DESCRIPTION OF THE INVENTION [Detailed Description of the Invention] This invention relates to improvements in power steering devices.

一般に、パワーステアリング装置において、低
速走行時にステアリングホイールを捕助する動力
流体の供給を増大してステアリングホイールを軽
くし、高速走行時には動力流体の供給を減少して
ステアリングホイールを重くして安定させること
が望ましい。 Generally, in a power steering device, when driving at low speeds, the supply of power fluid that assists the steering wheel is increased to make the steering wheel lighter, and when driving at high speeds, the supply of power fluid is decreased to make the steering wheel heavier and more stable. is desirable.

従来の装置では、このような目的のため走行車
速に伴なう操舵力をシリンダに供給できるよう車
速センサを用いて油圧反動制御を行なつたり、オ
イルポンプ又はサーボ弁でバイパスリターン制御
を行なつていた。しかしながら、このような従来
装置ではオイルポンプからの吐出流体の利用度が
高速走行において全く悪く、且つエネルギ節約時
代に沿わない欠点があつた。本発明者は先に特願
昭54−155270号によつて上記の如き従来装置の欠
点を改善するようにしたパワーステアリング方法
および装置を提供した。 For this purpose, conventional devices use a vehicle speed sensor to perform hydraulic reaction control so that the steering force corresponding to the traveling vehicle speed can be supplied to the cylinder, or perform bypass return control using an oil pump or servo valve. was. However, such conventional devices have the disadvantage that the efficiency of utilizing the fluid discharged from the oil pump is quite poor during high-speed running, and that they are not in keeping with the energy saving era. The present inventor previously provided a power steering method and device in Japanese Patent Application No. Sho 54-155270 which improves the drawbacks of the conventional device as described above.

本発明はこの先願発明において用いられている
ステアリングホイールの回転動作を検出するセン
サを不要ならしめるようにしたものである。即
ち、ステアリングホイールの動きをセンサによつ
て検出する代りにモータの操舵負荷電流により上
記ホイールの動作を感知するようにしたものであ
る。 The present invention eliminates the need for a sensor for detecting the rotational movement of the steering wheel, which is used in the prior invention. That is, instead of detecting the movement of the steering wheel by a sensor, the movement of the wheel is sensed by the steering load current of the motor.

以下、本発明の実施例を図面を参照して詳細に
説明する。第１図において符号１はステアリング
ホイール（ハンドル）を示し、このホイールの下
方にはコントロールバルブ、即ちサーボ弁２が配
置されている。このサーボ弁はホイールの下端に
設けられたピニオンギヤ３を含むギヤ装置（図示
せず）により作動せしめられる。このサーボ弁に
はオイルポンプ４が接続され、又図示しないパワ
ーシリンダがラインＡ，Ｂを介して接続されてい
る。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 indicates a steering wheel, and a control valve, ie, a servo valve 2, is arranged below this wheel. This servo valve is actuated by a gear system (not shown) including a pinion gear 3 provided at the lower end of the wheel. An oil pump 4 is connected to this servo valve, and a power cylinder (not shown) is connected via lines A and B.

オイルポンプ４を制御する本発明のコントロー
ラ１０は、オイルポンプ４を駆動する駆動体、例
えばモータ１１を制御する制御回路１２とこの制
御回路に接続された車速検出手段１３と後述する
操舵負荷電流検出手段１６とから成る。車速検出
手段１３は車速回転入力Ｄに接続された伝達ケー
ブル１４とこのケーブルに連結された車速センサ
１５とを備える。車速回転入力Ｄからの車輌速度
は、伝達ケーブル１４を介して車速センサ１５で
検出され、このセンサによつて第２図に示す如く
車速アナログ電圧Ｅ１が発電される。この電圧は
制御回路１２に送られる。制御回路は電圧が高く
なるにつれて、従つて車速が増大するにつれてモ
ータ１１の回転速度を減少させるようモータを制
御する。この結果、オイルポンプ４の回転量は車
速の増加に応じて減少することになる。このこと
は高速になるにつれてパワーシリンダへのオイル
量が減少することになり従つて、高速になるつれ
てステアリングホイールの回転は重くなることに
なる。逆に低速の場合は高速に比しオイルポンプ
４の回転量が多いためパワーシリンダへ供給され
るオイル量が多くなりステアリングホイールの回
転は軽くなる。制御回路１２がモータ１１の速度
を制御する例として例えば車速センサ１５として
発電機を用い、制御回路として半導体回路レギユ
レータを用いて発電機の発電電圧でレギユレータ
を制御してモータ１１の回転数を制御することが
できる。又、別の実施例では、センサを設けるこ
となくデイジタルで車速を計時し、これに応じて
モータの回転を制御することもできる。 A controller 10 of the present invention that controls the oil pump 4 includes a control circuit 12 that controls a drive body that drives the oil pump 4, such as a motor 11, a vehicle speed detection means 13 connected to this control circuit, and a steering load current detection unit that will be described later. means 16. The vehicle speed detection means 13 includes a transmission cable 14 connected to the vehicle speed rotation input D and a vehicle speed sensor 15 connected to this cable. The vehicle speed from the vehicle speed rotation input D is detected by a vehicle speed sensor 15 via a transmission cable 14, and this sensor generates a vehicle speed analog voltage E1 as shown in FIG. This voltage is sent to control circuit 12. The control circuit controls the motor to reduce the rotational speed of the motor 11 as the voltage increases and thus as the vehicle speed increases. As a result, the amount of rotation of the oil pump 4 decreases as the vehicle speed increases. This means that as the speed increases, the amount of oil in the power cylinder decreases, and therefore, as the speed increases, the rotation of the steering wheel becomes heavier. Conversely, at low speeds, the amount of rotation of the oil pump 4 is greater than at high speeds, so the amount of oil supplied to the power cylinder increases and the rotation of the steering wheel becomes lighter. As an example of the control circuit 12 controlling the speed of the motor 11, for example, a generator is used as the vehicle speed sensor 15, a semiconductor circuit regulator is used as the control circuit, the regulator is controlled by the generated voltage of the generator, and the rotation speed of the motor 11 is controlled. can do. In another embodiment, the vehicle speed can be measured digitally without providing a sensor, and the rotation of the motor can be controlled accordingly.

本発明では、上記コントローラにはステアリン
グを行なうとき即ちハンドルが回転した時モータ
１１の操舵負荷電流を検出し、この検出された電
流によつて上記オイルポンプの制御を開始する操
舵負荷電流検出手段１６が設けられている。この
検出手段１６は一般に知られている主電流回路の
電圧降下の検出回路を、モータ１１と制御回路１
２との間に挿入し、モータ１１に流れる操舵負荷
電流を演算して取り出す電子回路から成る。この
検出手段１６からの操舵検出信号は、車速センサ
１５からの制御回路１２に入る入力を制御するゲ
ート信号の役目をする。更に詳細にのべると、制
御回路１２は通常の構成を有する。この制御回路
は、例えば、操舵負荷電流検出手段１６に接続さ
れた積分・増幅器と、この積分・増幅器に接続さ
れたOFFデイレータイマと、このOFFデイレー
タイマに接続された比較回路と、この比較回路に
夫々接続されたPWM増幅器および三角波発振器
とから成る。PWM増幅器はモータ１１に接続さ
れ、比較回路は車速センサ１５に接続されてい
る。 In the present invention, the controller includes a steering load current detection means 16 that detects the steering load current of the motor 11 when steering is performed, that is, when the steering wheel rotates, and starts controlling the oil pump based on the detected current. is provided. This detection means 16 is a commonly known main current circuit voltage drop detection circuit that connects the motor 11 and the control circuit 1.
It consists of an electronic circuit that is inserted between the motor 11 and the motor 11 and calculates and extracts the steering load current flowing through the motor 11. The steering detection signal from the detection means 16 serves as a gate signal for controlling the input from the vehicle speed sensor 15 to the control circuit 12 . More specifically, the control circuit 12 has a conventional configuration. This control circuit includes, for example, an integrator/amplifier connected to the steering load current detecting means 16, an OFF delay timer connected to this integrator/amplifier, a comparison circuit connected to this OFF delay timer, and a comparison circuit respectively. It consists of a connected PWM amplifier and a triangular wave oscillator. The PWM amplifier is connected to the motor 11 and the comparison circuit is connected to the vehicle speed sensor 15.

ステアリングホイールを回すと、コントロール
バルブにおけるオイルポンプ４からこのコントロ
ールへ流入する油路がパワーシリンダへ開路して
加圧状態になり、モータ１１に操舵負荷電流が流
れる。この負荷電流は、操舵負荷電流検出手段１
６によつて検出され、この検出信号は積分・増幅
器によつて平滑増幅されて比較回路を作動させる
ゲート信号となる。 When the steering wheel is turned, the oil path flowing from the oil pump 4 to the control valve opens to the power cylinder and becomes pressurized, and a steering load current flows to the motor 11. This load current is detected by the steering load current detection means 1
6, and this detection signal is smoothed and amplified by an integrator/amplifier and becomes a gate signal for operating a comparison circuit.

一方、車速センサ１５からの信号と三角波発振
器の出力電圧とが比較回路に入力され、ここでパ
ルス幅変調信号（PWMパルス）を発生し、これ
がPWM増幅器に入力され、このPWM増幅器の
出力でモータ１１が回転される。 On the other hand, the signal from the vehicle speed sensor 15 and the output voltage of the triangular wave oscillator are input to a comparator circuit, which generates a pulse width modulation signal (PWM pulse), which is input to a PWM amplifier, and the output of this PWM amplifier is used to control the motor. 11 is rotated.

上記において、操舵負荷電流検出手段からの信
号は、積分・増幅器で操舵の有無（ON−OFF）
の信号に整形される。この整形された信号は
OFFデイレータイマによつて引伸ばされる。こ
の目的は、走行中の安定操舵を得るために、ステ
アリングホイールの回転を止めてもしばらく第３
図に示すP1の低速回転エリアに移行しないよう
に操舵負荷電流検出信号系に保持時限の機能をも
たせるためである。従つて、引伸ばされた信号に
よつて第３図のカーブＰの車速感応回転領域が持
続される。 In the above, the signal from the steering load current detection means is used as an integrator/amplifier to determine whether or not there is steering (ON-OFF).
The signal is formatted as follows. This shaped signal is
Extended by the OFF delay timer. The purpose of this is to provide stable steering while driving, so even if the steering wheel stops rotating, the third
This is to provide the steering load current detection signal system with a holding time limit function so as not to shift to the low speed rotation area of P1 shown in the figure. Therefore, the vehicle speed sensitive rotation region of curve P in FIG. 3 is maintained by the expanded signal.

車速の上昇に応じる車速センサ１５からの信号
は比較回路において三角波発振器の出力信号と比
較され、この比較信号によつてPWM増幅器をド
ライブし、この電力増幅されたPWM出力信号で
モータ１１を回転させる。 The signal from the vehicle speed sensor 15 in response to the increase in vehicle speed is compared with the output signal of the triangular wave oscillator in a comparator circuit, the PWM amplifier is driven by this comparison signal, and the motor 11 is rotated by this power-amplified PWM output signal. .

このように、本発明ではステアリングホイール
の回転をモータ１１の操舵負荷電流として検出
し、又、車速を車速センサによつて検出し、両者
を制御回路に入力してモータ１１の回転を第３図
に示す如く制御するようにしたものである。即
ち、第３図は第１図の実施例における車速に対す
るオイルポンプの回転特性を示したもので、ステ
アリングホイールを回さない時にはオイルポンプ
が例えば60Km／時の車速まで常時極めて低速で回
転しこれを越えると無駄な流通エネルギを使わな
いように常時極めて低速P1又は停止P0状態にモ
ータ１１を保持させておき、ステアリングホイー
ルを回した時またはその回転完了後、一定時間そ
の時の走行速度に伴ないカーブＰに沿つたＰレベ
ルの制御回路でモータを回転させ、出力ライン
Ａ，Ｂを介してパワーシリンダに流体を圧送し、
ステアリングホイールの回転出力を補助する。こ
の場合、操舵負荷電流検出手段１６に例えば時定
数回路などの時限手段を設けると、ハンドル回転
時間t1後、例えばt2だけポンプ作動停止の遅延時
間が上記時限手段によつて付加され、このため、
高速道路などの長いカーブでハンドルを回し続け
る間、自動的にオイルポンプが持続動作しステア
リングホイールに対する回転出力が補給される。 As described above, in the present invention, the rotation of the steering wheel is detected as the steering load current of the motor 11, and the vehicle speed is detected by the vehicle speed sensor, and both are input to the control circuit to control the rotation of the motor 11 as shown in FIG. The control is as shown in FIG. In other words, Fig. 3 shows the rotational characteristics of the oil pump with respect to the vehicle speed in the embodiment shown in Fig. 1. When the steering wheel is not turned, the oil pump always rotates at an extremely low speed up to a vehicle speed of, for example, 60 km/h. In order to avoid wasting circulation energy if the steering wheel exceeds 100 kW, the motor 11 is kept at an extremely low speed P 1 or stopped P 0 at all times, and when the steering wheel is turned or after the rotation is completed, the motor 11 is kept at the current traveling speed for a certain period of time. The motor is rotated by a P-level control circuit along a corresponding curve P, and fluid is pumped to the power cylinder via output lines A and B.
Assists the rotation output of the steering wheel. In this case, if the steering load current detection means 16 is provided with a time limit means such as a time constant circuit, the time limit means adds a delay time for stopping the pump operation by, for example, t 2 after the steering wheel rotation time t 1 . For,
As you continue to turn the steering wheel on long curves such as on highways, the oil pump automatically operates continuously to supply rotational output to the steering wheel.

上述したように本発明によれば、走行速度ある
いはエンジン回転に関連しないでバツテリーによ
りモータを高速回転させることによりオイルポン
プの回転数を高め吐出量を増加し得るため、オイ
ルポンプの寸法を従来の数分の１以下に小さくし
ても、パワーシリンダが要求するステアリング時
の容量出力を充分に満すことができることから、
オイルポンプを小型軽量化することができる。又
ステアリングホイールを操作しない時はポンプが
常時低速または、停止状態で駆動制御されるので
エネルギを節減し又オイルポンプモータのブラシ
の消耗を減らし寿命を延長することができる等の
実益がある。乗用車による燃費テストでは、本発
明による操舵負荷電流検出方式による油圧式パワ
ーステアリングは従来のエンジン駆動方式に比べ
て、高速道路走行時および一般市道走行時ともに
４パーセント以上３の費改善を果たすことが判明
した。 As described above, according to the present invention, by rotating the motor at high speed with the battery regardless of the traveling speed or engine rotation, the rotation speed of the oil pump can be increased and the discharge amount can be increased. Even if it is smaller than a fraction of the size, it can sufficiently satisfy the capacity output required by the power cylinder during steering.
The oil pump can be made smaller and lighter. In addition, when the steering wheel is not operated, the pump is always driven at a low speed or in a stopped state, which has practical benefits such as saving energy and reducing wear and tear on the brushes of the oil pump motor, thereby extending the life of the oil pump motor. In a fuel efficiency test using a passenger car, the hydraulic power steering system using the steering load current detection method according to the present invention achieved a cost improvement of more than 4% compared to the conventional engine drive system, both when driving on expressways and on city roads. There was found.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明を実施したパワーステアリング
装置の一実施例を示す概略構成図、第２図は車速
度検出装置の出力電圧を示す曲線図、第３図は本
発明のステアリング装置によつて制御されたオイ
ルポンプ用モータの回転特性を示す曲線図であ
る。 １……ステアリングホイール、２……コントロ
ールバルブ、４……オイルポンプ、１０……コン
トローラ、１１……モータ、１２……制御回路、
１３……車速検出手段、１５……車速検出セン
サ、１６……操舵負荷電流検出手段。 FIG. 1 is a schematic configuration diagram showing an embodiment of a power steering device embodying the present invention, FIG. 2 is a curve diagram showing the output voltage of a vehicle speed detection device, and FIG. 3 is a diagram showing an example of a power steering device according to the present invention. FIG. 3 is a curve diagram showing the rotational characteristics of a controlled oil pump motor. DESCRIPTION OF SYMBOLS 1... Steering wheel, 2... Control valve, 4... Oil pump, 10... Controller, 11... Motor, 12... Control circuit,
13...Vehicle speed detection means, 15...Vehicle speed detection sensor, 16...Steering load current detection means.

Claims (1)

【特許請求の範囲】 １ パワーシリンダと、該パワーシリンダに圧力
油を供給するオイルポンプと、該オイルポンプを
駆動するモータと、ステアリングホイールに接続
され前記オイルポンプからパワーシリンダへの圧
力油の供給を制御するコントロールバルブとを備
えるパワーステアリング装置において、前記オイ
ルポンプに接続され車速の増加に従つてオイルポ
ンプの回転量を減少させるようにオイルポンプを
制御するコントローラを具備し、該コントローラ
は、前記ステアリングホイールを回したときオイ
ルポンプの圧力に感応する前記モータの操舵負荷
電流を検出する操舵負荷電流検出手段を有し、該
操舵負荷電流検出手段による電流検出によつて、
前記オイルポンプの制御が開始されるようにした
ことを特徴とするパワーステアリング装置。 ２ パワーシリンダと、該パワーシリンダに圧力
油を供給するオイルポンプと、該オイルポンプか
らパワーシリンダへの圧力油の供給を制御するコ
ントロールバルブと、前記オイルポンプに接続さ
れ車速の増加に従つてオイルポンプの回転量を減
少させるようにオイルポンプを制御するコントロ
ーラと、ステアリングホイールを回転したときの
操舵負荷電流を検出する操舵負荷電流検出手段と
を備えてなり、前記オイルボンプは所定の車速ま
では常時極めて低速で回転し該所定の車速を越え
ると常時極めて低速で回転もしくは停止していて
前記ステアリングホイールの回転時もしくはこの
回転後一定時間前記オイルポンプの回転量が増加
して必要な油量を供給し、この必要な油量が車速
の増加に伴つて減少されるようにしたことを特徴
とするパワーステアリング装置。 ３ 前記操舵負荷電流検出手段は前記ステアリン
グホイールの回転後一定時間のみ前記オイルポン
プの回転量を増加せしめる時限回路手段を含んで
なる請求の範囲第２項記載のパワーステアリング
装置。[Claims] 1. A power cylinder, an oil pump that supplies pressure oil to the power cylinder, a motor that drives the oil pump, and a motor that is connected to a steering wheel and supplies pressure oil from the oil pump to the power cylinder. The power steering apparatus includes a controller connected to the oil pump and controlling the oil pump so as to reduce the amount of rotation of the oil pump as the vehicle speed increases, and the controller includes a control valve that controls the oil pump. It has a steering load current detection means for detecting a steering load current of the motor that is sensitive to the pressure of the oil pump when the steering wheel is turned, and by the current detection by the steering load current detection means,
A power steering device characterized in that control of the oil pump is started. 2. A power cylinder, an oil pump that supplies pressure oil to the power cylinder, a control valve that controls the supply of pressure oil from the oil pump to the power cylinder, and a control valve that is connected to the oil pump and controls the oil pump as the vehicle speed increases. The oil pump is equipped with a controller that controls the oil pump to reduce the amount of rotation of the pump, and a steering load current detection means that detects the steering load current when the steering wheel is rotated, and the oil pump is constantly operated up to a predetermined vehicle speed. The oil pump rotates at an extremely low speed, and when it exceeds the predetermined vehicle speed, it always rotates at an extremely low speed or stops, and the rotation amount of the oil pump increases when the steering wheel rotates or for a certain period of time after this rotation to supply the required amount of oil. A power steering device characterized in that the required amount of oil is reduced as the vehicle speed increases. 3. The power steering device according to claim 2, wherein the steering load current detection means includes a time limit circuit means for increasing the rotation amount of the oil pump only for a certain period of time after the rotation of the steering wheel.
JP9696780A 1980-07-16 1980-07-16 Power steering system Granted JPS5722967A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
JP9696780A JPS5722967A (en) 1980-07-16 1980-07-16 Power steering system
US06/221,612 US4392540A (en) 1980-07-16 1980-12-31 Power steering device for a vehicle
DE19813100067 DE3100067A1 (en) 1980-07-16 1981-01-03 POWER STEERING DEVICE FOR A VEHICLE
AU65981/81A AU547767B2 (en) 1980-07-16 1981-01-05 Power steering device
GB8100382A GB2079691B (en) 1980-07-16 1981-01-07 Power steering device for a vehicle
KR1019810000036A KR870001172B1 (en) 1980-07-16 1981-01-08 Power handle driving instrument
CA000368226A CA1169782A (en) 1980-07-16 1981-01-09 Power steering device for a vehicle
FR8100326A FR2486898B1 (en) 1980-07-16 1981-01-09 POWER STEERING DEVICE FOR VEHICLE
IT67020/81A IT1172218B (en) 1980-07-16 1981-01-09 MOTOR STEERING DEVICE FOR A VEHICLE
BE0/203457A BE887036A (en) 1980-07-16 1981-01-09 VEHICLE SERVO DIRECTION
ES498431A ES498431A0 (en) 1980-07-16 1981-01-09 ASSISTED STEERING DEVICE.
NL8100076A NL8100076A (en) 1980-07-16 1981-01-09 POWER STEERING DEVICE FOR A VEHICLE.
US06/284,539 US4417640A (en) 1980-07-16 1981-07-20 Electrically driven oil pressured power steering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9696780A JPS5722967A (en) 1980-07-16 1980-07-16 Power steering system

Publications (2)

Publication Number Publication Date
JPS5722967A JPS5722967A (en) 1982-02-06
JPH0329628B2 true JPH0329628B2 (en) 1991-04-24

Family

ID=14178995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9696780A Granted JPS5722967A (en) 1980-07-16 1980-07-16 Power steering system

Country Status (12)

Country Link
US (1) US4392540A (en)
JP (1) JPS5722967A (en)
KR (1) KR870001172B1 (en)
AU (1) AU547767B2 (en)
BE (1) BE887036A (en)
CA (1) CA1169782A (en)
DE (1) DE3100067A1 (en)
ES (1) ES498431A0 (en)
FR (1) FR2486898B1 (en)
GB (1) GB2079691B (en)
IT (1) IT1172218B (en)
NL (1) NL8100076A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689985A1 (en) * 1994-05-31 1996-01-03 Toyoda Koki Kabushiki Kaisha Power steering apparatus

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198169A (en) * 1981-05-29 1982-12-04 Tokai T R W Kk Motor-driven oil pressure power steering unit
JPS5822760A (en) * 1981-08-05 1983-02-10 Nissan Motor Co Ltd Steering force controller for power steering
JPS5847657A (en) * 1981-09-16 1983-03-19 Toyoda Mach Works Ltd Control device of power steering unit
JPS58104339A (en) * 1981-12-15 1983-06-21 Nissan Motor Co Ltd Stabilizer of idling of vehicle
JPS58161667A (en) * 1982-03-18 1983-09-26 Nissan Motor Co Ltd Steering force control for power steering
JPS58170667A (en) * 1982-03-30 1983-10-07 Nissan Motor Co Ltd Power steering device
US4518055A (en) * 1982-04-08 1985-05-21 Nissan Motor Company, Limited Pump-drive device of power-assisted steering system
JPS5918066A (en) * 1982-06-25 1984-01-30 Jidosha Kiki Co Ltd Power steering unit
JPS5959574A (en) * 1982-09-30 1984-04-05 Jidosha Kiki Co Ltd Power steering system control method
JPS5963264A (en) * 1982-10-05 1984-04-10 Aisin Seiki Co Ltd Electric power steering device
US4573705A (en) * 1982-11-22 1986-03-04 Mazda Motor Corporation Suspension and steering control of motor vehicles
JPS59100059A (en) * 1982-11-30 1984-06-09 Aisin Seiki Co Ltd Electric power steering device
JPS59149870A (en) * 1983-02-14 1984-08-27 Jidosha Kiki Co Ltd Power steering gear
JPS608159A (en) * 1983-06-28 1985-01-17 Jidosha Kiki Co Ltd Power steering system control method
JPS6035662A (en) * 1983-08-08 1985-02-23 Aisin Seiki Co Ltd Motor power steering system
JPS6035664A (en) * 1983-08-08 1985-02-23 Aisin Seiki Co Ltd Motor-driven power steering system
DE3434495A1 (en) * 1983-09-24 1985-04-25 Jidosha Kiki Co Servo steering device
GB2147256A (en) * 1983-09-28 1985-05-09 Trw Cam Gears Ltd Power steering system
JPS6072366U (en) * 1983-10-25 1985-05-22 三菱電機株式会社 Steering force control device for power steering system
JPS60107458A (en) * 1983-11-15 1985-06-12 Mitsubishi Electric Corp Controller of steering force for power running gear
JPS60128078A (en) * 1983-12-13 1985-07-08 Jidosha Kiki Co Ltd Controlling method of power steering device
US4665489A (en) * 1984-03-15 1987-05-12 Kabushiki Kaisha Meidensha Unmanned vehicle control system and method
US4665487A (en) * 1984-05-25 1987-05-12 Kabushiki Kaisha Meidensha Unmanned vehicle control system and method
JPS6167664A (en) * 1984-09-10 1986-04-07 Toyoda Mach Works Ltd Steering force controller for power steering system
GB2166098B (en) * 1984-10-31 1987-10-28 Trw Cam Gears Ltd Vehicle hydraulic servo system
US4584488A (en) * 1984-11-13 1986-04-22 Allied Corporation Controller for generating a pair of mutually exclusive pulse train signals
US4702335A (en) * 1985-05-28 1987-10-27 Trw Inc. Control apparatus for a power assist steering system
US4643269A (en) * 1985-10-10 1987-02-17 Ford Motor Company Power steering system for an automotive vehicle having a power steering pump cut out circuit
DE3544350A1 (en) * 1985-12-14 1987-06-19 Opel Adam Ag STEERING AID FOR MOTOR VEHICLES
JPH0723104B2 (en) * 1986-04-22 1995-03-15 三菱電機株式会社 Motor drive type power steering controller
KR900005710B1 (en) * 1986-04-29 1990-08-06 미쓰비시전기 주식회사 Motor driven power steering system for a vehicle
KR910000396B1 (en) * 1986-04-29 1991-01-25 미쓰비시전기 주식회사 Motor-driven power steering system for a vehicle
JPH069972B2 (en) * 1986-12-26 1994-02-09 日本精工株式会社 Motor drive type power steering control device
US4722545A (en) * 1987-05-04 1988-02-02 Ford Motor Company Method and apparatus for determining the center position of a vehicular steering system
US4867466A (en) * 1987-12-16 1989-09-19 Ford Motor Company Distance based method and apparatus for determining the center position of a vehicular steering system
US4848791A (en) * 1988-01-06 1989-07-18 Ford Motor Company Method and apparatus for determining steering position of automotive steering mechanism
DE3808900A1 (en) * 1988-03-17 1989-09-28 Teves Gmbh Alfred Parking aid system
DE3825102A1 (en) * 1988-07-23 1990-01-25 Teves Gmbh Alfred AUXILIARY STEERING FOR MOTOR VEHICLES
DE3920862A1 (en) * 1989-06-26 1991-01-03 Teves Gmbh Alfred AUXILIARY STEERING FOR MOTOR VEHICLES
EP0562426B1 (en) * 1992-03-27 1999-05-19 Toyoda Koki Kabushiki Kaisha Power steering apparatus
DE4335390B4 (en) * 1993-10-16 2007-04-12 Trw Fahrwerksysteme Gmbh & Co Kg Power steering device
US5596498A (en) * 1994-01-14 1997-01-21 Danfoss A/S Hydraulic steering arrangement for vehicles
JP3425806B2 (en) * 1994-08-31 2003-07-14 三菱電機株式会社 Motor control device
JP3525269B2 (en) * 1995-03-09 2004-05-10 光洋精工株式会社 Power steering device
JP3516100B2 (en) * 1995-03-13 2004-04-05 光洋精工株式会社 Power steering device
JP3547558B2 (en) * 1995-10-25 2004-07-28 光洋精工株式会社 Power steering device
JP3557490B2 (en) * 1996-02-20 2004-08-25 光洋精工株式会社 Power steering device
DE19623567C2 (en) * 1996-06-13 2000-06-08 Daimler Chrysler Ag Hydraulic servo control, in particular hydraulic power steering for motor vehicles
DE19751397B4 (en) * 1997-03-22 2007-05-24 Robert Bosch Gmbh Method and device for operating a superposition or steering system, in particular for a motor vehicle
US6101435A (en) * 1998-06-01 2000-08-08 Ford Global Technologies, Inc. Method for compensating a power assist steering system control signal
JP3668614B2 (en) * 1998-07-13 2005-07-06 光洋精工株式会社 Power steering device
US6260356B1 (en) 2000-01-06 2001-07-17 Ford Global Technologies, Inc. Control method and apparatus for an electro-hydraulic power assisted steering system
US6789017B2 (en) 2002-02-15 2004-09-07 Robert Bosch Corporation Vehicle steering angle position determination method
US6816799B2 (en) * 2002-08-05 2004-11-09 Robert Bosch Corporation Vehicle operating parameter determination system and method
US6966398B2 (en) * 2003-03-26 2005-11-22 Trw Automotive U.S. Llc Apparatus for controlling a power-assisted steering gear in response to vehicle speed
DE10325848A1 (en) * 2003-06-06 2005-01-05 Trw Fahrwerksysteme Gmbh & Co. Kg Method for controlling an electric pump drive motor of a power steering device
FR2864000B1 (en) * 2003-12-18 2006-04-14 Hydroperfect Internat ELECTRO-HYDRAULIC STEERING ASSISTANCE SYSTEM FOR A MOTOR VEHICLE
EP1582437A1 (en) * 2004-04-01 2005-10-05 TRW Automotive U.S. LLC Apparatus for controlling a power-assisted steering gear in response to vehicle speed
JP4363257B2 (en) * 2004-06-01 2009-11-11 株式会社ジェイテクト Power steering device
CN101112075A (en) * 2004-12-06 2008-01-23 罗姆韦尔有限公司 Scalable message forwarding
DE102005042509A1 (en) * 2005-09-07 2007-03-22 Trw Automotive Gmbh Hydraulic power steering apparatus and method for controlling a pump drive motor
DE102008007736A1 (en) * 2007-02-08 2008-08-21 Sauer-Danfoss Aps Steering system e.g. four wheel steering system, for e.g. bulldozer, has measuring engine to allow rotation of rotary valve, and operating rotary engine as pump for pumping fluid, during failure of system pump
US20090133953A1 (en) * 2007-11-28 2009-05-28 Delphi Technologies, Inc. Power steering system having a variable-ratio drive mechanism for a vehicle
DE102008060306B4 (en) 2008-12-03 2018-12-20 Trw Automotive Gmbh Hydraulic power steering apparatus and method for controlling a pump drive motor
CN104590366B (en) * 2015-01-16 2017-07-11 东风商用车有限公司 Integrated arrangement system of full-bearing hybrid power bus steering system
CN105667583B (en) * 2016-01-07 2018-03-09 东风商用车有限公司 Centralized arrangement type electric hydraulic power-assisted steering system of large-scale full-load passenger car
CN114620124B (en) * 2022-03-31 2023-03-24 东风商用车有限公司 Emergency steering pump control method, device and equipment and readable storage medium

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750742A (en) * 1952-08-18 1956-06-19 Adolphe C Peterson Vehicle power operated steering means
US3153462A (en) * 1962-09-19 1964-10-20 Gen Motors Corp Steering system
DE2263347C3 (en) * 1972-12-23 1981-08-27 Teldix Gmbh, 6900 Heidelberg Power steering device
GB1400634A (en) * 1973-01-16 1975-07-16 Coventry Climax Eng Ltd Power assisted steering system
DE2313706A1 (en) * 1973-03-20 1974-09-26 Bosch Gmbh Robert POWER STEERING
DE2508938A1 (en) * 1975-03-01 1976-09-09 Linde Ag ELECTRIC VEHICLE WITH POWER STEERING DEVICE
US3991846A (en) * 1975-08-07 1976-11-16 Clark Equipment Company Power steering system
US3996742A (en) * 1976-03-04 1976-12-14 Trw Inc. Fluid flow control apparatus
DE2639853A1 (en) * 1976-09-03 1978-03-09 Lansing Gmbh CONTROL FOR A HYDROSTATIC STEERING DEVICE OR POWER STEERING
FR2399350A1 (en) * 1977-08-05 1979-03-02 Citroen Sa IMPROVEMENTS MADE TO ASSISTED DIRECTIONS FOR VEHICLES
US4212366A (en) * 1978-09-11 1980-07-15 Jidosha Kiki Co., Ltd. Power steering control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689985A1 (en) * 1994-05-31 1996-01-03 Toyoda Koki Kabushiki Kaisha Power steering apparatus

Also Published As

Publication number Publication date
US4392540A (en) 1983-07-12
AU547767B2 (en) 1985-11-07
CA1169782A (en) 1984-06-26
GB2079691B (en) 1984-07-25
BE887036A (en) 1981-05-04
JPS5722967A (en) 1982-02-06
GB2079691A (en) 1982-01-27
FR2486898A1 (en) 1982-01-22
KR830004989A (en) 1983-07-23
IT1172218B (en) 1987-06-18
NL8100076A (en) 1982-02-16
DE3100067A1 (en) 1982-02-11
AU6598181A (en) 1982-01-21
ES8300602A1 (en) 1982-11-01
ES498431A0 (en) 1982-11-01
FR2486898B1 (en) 1986-10-17
KR870001172B1 (en) 1987-06-16
IT8167020A0 (en) 1981-01-09

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